diff options
| author |   Vladimir Oltean <vladimir.oltean@nxp.com> | 2020-07-13 19:57:06 +0300 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-07-13 17:40:02 -0700 |
| commit | b39648079db40874df97c5104066f8a9fc3daa0c (patch) | |
| tree | e171984f0589035acb3276e54f0d1920da6186c8 /drivers | |
| parent | net: mscc: ocelot: split writes to pause frame enable bit and to thresholds (diff) | |
| download | linux-dev-b39648079db40874df97c5104066f8a9fc3daa0c.tar.xz linux-dev-b39648079db40874df97c5104066f8a9fc3daa0c.zip | |
net: mscc: ocelot: disable flow control on NPI interface
The Ocelot switches do not support flow control on Ethernet interfaces
where a DSA tag must be added. If pause frames are enabled, they will be
encapsulated in the DSA tag just like regular frames, and the DSA master
will not recognize them.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/mscc/ocelot.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mscc/ocelot.c b/drivers/net/ethernet/mscc/ocelot.c index aca805b9c0b3..2a44305912d2 100644 --- a/drivers/net/ethernet/mscc/ocelot.c +++ b/drivers/net/ethernet/mscc/ocelot.c @@ -1401,6 +1401,10 @@ void ocelot_configure_cpu(struct ocelot *ocelot, int npi, extraction); ocelot_fields_write(ocelot, npi, SYS_PORT_MODE_INCL_INJ_HDR, injection); + + /* Disable transmission of pause frames */ + ocelot_rmw_rix(ocelot, 0, SYS_PAUSE_CFG_PAUSE_ENA, + SYS_PAUSE_CFG, npi); } /* Enable CPU port module */ |